Results. Ten patients received PPVI and 26 underwent open heart surgery with graft insertion. Average patient age was 31±20 years. Pre-operative TDV (p=0.008), and MPI (p=0.05) were significantly higher for the surgical population than the percutaneous group. Postoperative, TDV and TAPSE were significantly lower early (p<0.001) and late (p<0.001) in the surgical group than preoperative measures. No significant differences were seen for the PPVI group. On comparison of relative differences in parameters between groups TDI was significantly higher both early (p<0.001) and late (p<0.006) postoperatively in the percutaneous group.

Conclusion. RV systolic recovery as measured by TDV and TAPSE was significantly impaired post surgery but relatively unchanged post PPVI. On analysis of relative differences in RV parameters, TDI was significantly higher early and late post PPVI than open-heart surgery suggesting that surgery may impact RV function more significantly than its percutaneous counterpart.